Tank-heater.



H. H. HARTMAN.

TANK HEATER.

APPLICATION HLED NOV. 9. 1911.

Patented Dec. 17, 1918.

INVENTOR WlTNESSES ATTORNEY UNITED STATES PATENT OFFICE.

HARRY H. HARTMAN, 0F EFFINGHAM, KANSAS.

TANK-HEATER.

Application filed November 9, 1917.

To all whom it may concern:

Be it known that I, HARRY H. HARTMAN, a citizen of the United States, residing at Eflingham, in the county of Atchison and State of Kansas, have invented certain new and useful Improvements in Tank-Heaters, of which the following is a specification.

This invention relates to a tank water heater, and it is particularly an object of my invention to provide a heater which is so constructed that) it is complete within itself, thus obviating the necessity of having a specially constructed tank or of mak ing special connections, and which complete unit is adapted to be set into a stock or other water tank and to heat the water therein.

A further object resides in so constructing the heater that not only is heat radiated from the casing thereof and given oil to the water by direct contact, but circulation of the water in and through a heating coil is induced.

Yet another object is to so construct the device that the partial submergence within the water of the tank will not interfere with the maintenance of a proper fire or with the tending of this fire.

With the above and other objects in view, which will be in part described and in part understood from the specification, drawings, and claims, my invention consists in certain novel features of construction and combination of parts which will be hereinafter more fully set forth.

In the drawings Figure 1 is a vertical sectional View taken substantially centrally through the heater structure;

Fig. 2 is a view taken partly in horizontal section and on the line 22 of Fig. 1;

Fig. 3 is a sectional View on the line 3-3 of Fig. 1; and,

Fig. A is a fragmentary sectional view taken on the line 4-4 of Fig. 1.

A casing 1, which is here shown as being rectangular in plan, but which might be circular, or of any other desired configuration, is made up of sheet 'metal plates seamed together to have water-proof joints, is made of a single casting, or is formed in any other desired way, the essential feature being that the casing is liquid tight in the bottom and in the sides thereof up to the open top. A draft and clean-out chute 2 is connected at one side of the casing 1 near the bottom thereof and extends up- Specification of Letters Patent.

Patented Dec. 17, 1918.

Serial No. 201,151.

wardly and outwardly substantially as shown in Fig. 1, a brace 3 being provided to give better securement to this chute. As is illustrated, the top of the chute is brought up to be substantially on the same level with the open top of the body of the casing, and a water-tight connection is made between the chute and the casing.

A cover A is hinged on the casing l at the upper edge and at one side as shown at 5, and this cover is brought up in a gradual taper to merge into the smoke pipe or flue 6. The flue 6 has a damper 7 mounted therein to control opening of the same, and a spark hood 8 is preferably mounted over the open top of the fiue. A handle 9 is connected on the cover A by which the same may be conveniently swung up and opened around the hinged mounting at 5, and a stop 10 is carried by the cover on the hinged side thereof and is so disposed that as the cover is raised to substantially the position shown by the dotted lines in Fig. 1, this stop will hold the cover in the open position against falling back, while the weight of the smoke pipe or flue will overbalance the weight of the forward part of the cover and will insure against accidental closing of the same.

A serpentine coil 11 has the ends thereof bent outwardly andscrew-threaded, and this coil is mounted within the casing 1 with the ends opening through the side walls thereof, the nuts 12 and 13 being fitted on the threaded portions of the ends to be tightened against the inner and outer sides of the walls of the casing to maintain the coil in the proper mounting and at the same time establish a water-tight connection therearound. As is illustrated, the coil is laid flat and is angularly disposed so that the intake end 14 is somewhat lower than the outlet end 15, and both the inlet and outlet ends of the coil are left open. It is the intention that the space above the coil 11, within the casing 1, shall be considered as the fire box and the space below this coil will be used as the ash pit, and as the draft and clean-out chute 2 communicates with the lower part of the casing 1, access will be had to the ash pit so that the same may be cleaned out, the hinged mounting of the cover 4 providing for access to the fire-box. The chute 2 communicates substantially centrally with the ash pit, and ash collector plates 16 and 17 are inclined at the sides of the casing and at the bottom thereof to throw the ashes to the center of the pit so that a long handled shovel or other suitable implement can be used to reach the ashes and remove the same from the pit.

As has been stated, the damper T is provided in the smoke pipe or flue 6, and draft is controlled at this point accordingly; and also, that the supply of air to the ash pit through the chute 2 may be controlled, a door 18 is hingedly mounted on the upper end of the chute. While this door is illustrated as having a plain hinged mounting, it will be appreciated that it might be hinged centrally, or mounted in any other desired and approved way, or might have a stop associated therewith so that the width of opening of the door could be regulated to thus govern the bottom draft to the fire. As it is not practical, in most instances, to so construct the coil ll that it will be adaptable as a grate to support the fire, it is preferable that a supplemental grate 19 be placed on the coil and in this way the fire will be supported.

In the use of the device, the heater as a unit will be set or placed within the tank to be heated and care will be taken to see that the water does not rise above the level of the open top of the casing and of the chute, however, the intake and outlet ends of the coil 11 are left open and better protected and consequently water will flow into the coil to entirely fill the same. Now by grasping the handle 9 and swinging back the cover 4 to the position shown in dotted lines, access will be had to the tire boX of the casing and ,a fire of wood, coal, or other suitable fuel can be built on the grate 19, it of course being understood that the bottom draft will be regulated by opening and closing the door 18. The cover t is again closed down, and the top draft, which is through the flue 6, is controlled by the damper 7, so that the fire upon the grate 19 can be very readily con trolled and adjusted as to its intensity. As the fire within the fire box is directly against the sides of the casing 1, and the hot ashes fall through the grate into the ash pit 2, the water in contact with the casing 1 will ge heated, however, as the coil 11 is disposed at such a point that it receives a great deal of heat from the lire, the water therein will be heated and will be given a natural flow from the intake to the outlet end, thus inducing circulation of the water within the tank and insuring that the heating of the water will not be entirely localized around the casing.

From the foregoing it will be seen that copies of this patent may he obtained for five eeaees tank or special piping connections are notrequired.

ll hile I have in the foregoing set forth and described only one particular form of the invention, it will be understood and appreciated that changes and variations might be resorted to in the form and ar rangement of those parts as hereinbefore set forth, and that certain of the parts might be given other forms than described, in view of which fact I wish to be limited only to such points as may be set forth in the claims.

I claim 1. A tank water heater comprising a casing provided with an upwardly inclined clean-out chute projecting from the bottom of said casing, said casing provided with upwardly inclined ash collector plates secured to the bottom thereof and being inclined upwardly toward the side walls of said casing, a grate supported within said casing, a serpentine coil placed below said grate and provided with open ends extending through said casing and communicating with the exterior thereof, the outlet end being placed above the inlet end of said coil. and a hinged cover carried by the top of said casing.

2. A tank water heater comprising a casing, said casing provided with a clean-out chute secured thereto and communicating with the bottom thereof, means for directing ashes toward said chute and'preventing the clogging of ashe in the bottom of said casin a grate carried by said casing intermediate the ends thereof, a cover hingedly secured to said casing and provided-with a tapering upper end, a fine carried by the upper end of said cover, a spark hood mounted upon said flue, a damper mounted within said flue, and a. projecting tongue carried by said cover adapted to engage said casing for limiting the upward swinging movement of said cover upon said casing and preventing the flue carried by said cover from swinging baclnvardly into the water within which said tank heater is submerged.

in testimony whereof I affix my signature in presence of two witnesses.

HARRY H. HARTMAN.

Witnesses E. J. KELLY, D. R. GERET'I.

I t .5. ,t 5 eminence, .14. G. 

